Question

The unbalanced equation from the following:

विकल्प

• \[\ce{Na2SO3 + 2HCl -> 2NaCl + H2O + SO2}\]

• \[\ce{C + 4HNO3 -> CO2 + 2H2O + 4NO2}\]

• \[\ce{Fe2O3 + 3CO -> 2Fe + 3CO2}\]

• \[\ce{2NH3 + 3CuO -> 3Cu + 2H2O + N2}\]

Answer 1

\[\ce{2NH3 + 3CuO -> 3Cu + 2H2O + N2}\]

Explanation:

This equation is unbalanced because the left side has 6 Hydrogen atoms (2 × 3), while the right side only has 4 Hydrogen atoms (2 × 2). Oxygen is also unbalanced.